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1976 SSBC

M

Mango

Member
Joined
Dec 29, 2009
Messages
19
Does anyone have access to a 1976 Standard Building Code? I specifically need to know what wind load requirements were in effect for signs in the southern region of Texas. The Texas Department of Transportaion is acquiring ROW and a particular sign owner wants additional money from TXDOT for his sign because he claims there were no wind load requirements when the sign was erected and to replace the sign will cost more to meet current windload. I am trying to help TXDOT on this one. Any help is greatly appreciated. Thanks,

Mango
 
Re: 1976 SSBC

I don't have a copy of the 1976 SSBC, but I remember designing some apartments under the SSBC around that time, and having to do some wind uplift calculations.

The model codes at that time used "fastest mile" wind speeds, instead of the 3-second gust in the IBC. 3-second gust windspeeds are usually 30% faster than fastest mile. I think the calculations used a uniform force over the whole surface, without increases at the edges & corners.

A new sign will probably require a lot more calculation, but not a great deal more material.
 
Re: 1976 SSBC

have you checked some of the local BIG cities around that areae to see if they used 1976 SSBC??? if they did they shouuld have a copy
 
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